Silver jewelry over 8 grams are marked with the mark for 1st grade silver of the Dutch Guarantee Platinum, Gold and Silver. Gold jewelry over 1 gram bear the hallmark for 14k. gold. When handmade jewelry is finished it will be marked with the maker's mark (stabbing the responsibility of the goldsmith who made ​​the ornament). Then the jewel is getting the official mark for silver or gold from the Dutch Guarantee.